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Star density maps of the Gaia Catalogue of Nearby Stars.The Sun is located at the centre of both maps. The regions with higher density of stars are shown; these correspond with known star clusters (Hyades and Coma Berenices) and moving groups.

This is a list of nearby stellar associations and moving groups. A stellar association is a very loose star cluster, looser than an open cluster. A moving group is the remnant of such a stellar association. Members of stellar associations and moving groups share similar kinematic properties, as well as similar ages and chemical composition.

The list (below) is sorted by the distance to the Solar System.

Main associations of the galactic plane in the night sky


Nearby (≤500 light-years) associations and groups
Name Associated star or cluster Constellation Average distance ( light-years) Age ( million years) Note Reference
Oceanus Luhman 16 6-160 510 Closest moving group. [1]
Castor Moving Group Castor, DX Cancri, Vega, Fomalhaut, etc. <80 Disputed existence.
Ursa Major association Alioth, Mizar, Merak, etc. Ursa Major 80 414 [2]
AB Doradus moving group AB Doradus Dorado 100 150 [2]
β Pictoris moving group β Pictoris Pictor 100 24 [2]
Carina-Near moving group Carina 100 200 [2]
Hercules-Lyra association Hercules + Lyra 100 260 might be a stellar stream [3] [4]
Tucana-Horologium association Tucana + Horologium 150 45 Formerly part of the GAYA ( Great Austral Young Association) [2] [5]
Hyades Hyades Taurus 153 750 Closest open cluster. Reported for reference. [2]
Columba association Columba 160 42 Formerly part of the GAYA ( Great Austral Young Association) [2] [5]
TW Hydrae association TW Hydrae Hydra 160 10 [2]
Carina Association Carina 200 45 Formerly part of the GAYA ( Great Austral Young Association) [2] [5]
Argus association IC 2391 Vela + Carina 240 45 May or may not be related to IC 2391 [6] [7]
Coma Star Cluster Coma Star Cluster Coma Berenices 280 562 Second closest open cluster. Reported for reference. [8] [2]
Volans-Carina association Volans + Carina 280 90 formerly Group 30 [9] [10]
32 Orionis group 32 Orionis Orion 310 22 [2]
η Chamaeleontis moving group η Chamaeleontis Chamaeleon 310 11 [2] [11]
χ1 Fornacis moving group χ1 Fornacis Fornax 320 500 other name: cluster Alessi 13 [2]
118 Tau association 118 Tauri Taurus 330 10 [2]
ε Chamaeleontis association ε Chamaeleontis Chamaeleon 330 3.7 [2]
Group 10 Ursa Major 330 400 or ~1000 proposed moving group; alternative name: Group X [10] [12] [13]
Lower Centaurus–Crux association Centaurus + Crux 360 15 Subgroup of the Scorpius–Centaurus association [2]
Group 29 Taurus 380 40 proposed moving group, overlaps with Taurus-Auriga, but is older [10] [14]
Taurus-Auriga association Taurus + Auriga 390 1.5 See also: Taurus Molecular Cloud; part of the Radcliffe wave [15] [2]
Group 26 Cassiopeia 401 <1000 proposed moving group [10] [12]
Octans association Octans 420 35 [2]
Upper Centaurus–Lupus association Centaurus + Lupus 420 16 Subgroup of the Scorpius–Centaurus association [2]
Upper Scorpius association Scorpius 420 10 Subgroup of the Scorpius–Centaurus association [2]
ρ Ophiuchi association ρ Ophiuchi Ophiuchus 430 2 See also: Rho Ophiuchi cloud complex [2]
Pleiades Pleiades Taurus 444 112 Third closest open cluster. Reported for reference. [2]
Corona Australis group Corona Australis 450 4.5 [2]
Upper Corona Australis group Corona Australis 480 10 [2]
Platais 8 cluster Carina 489 60 Open cluster. Reported for reference. [2] [16]
μ Tau association μ Eridani, μ Tauri Taurus 489 60 [17]

See also

References

  1. ^ Gagné, Jonathan; Moranta, Leslie; Faherty, Jacqueline K.; Kiman, Rocio; Couture, Dominic; Arnaud René Larochelle; Popinchalk, Mark; Morrone, Daniella (2023). "The Oceanus Moving Group: A New 500 Myr Old Host for the Nearest Brown Dwarf". The Astrophysical Journal. 945 (2): 119. arXiv: 2208.00070. Bibcode: 2023ApJ...945..119G. doi: 10.3847/1538-4357/acb8b7.
  2. ^ a b c d e f g h i j k l m n o p q r s t u v w x y Gagné, Jonathan; Mamajek, Eric E.; Malo, Lison; Riedel, Adric; Rodriguez, David; Lafrenière, David; Faherty, Jacqueline K.; Roy-Loubier, Olivier; Pueyo, Laurent; Robin, Annie C.; Doyon, René (March 2018). "BANYAN. XI. The BANYAN Σ Multivariate Bayesian Algorithm to Identify Members of Young Associations with 150 pc". Astrophysical Journal. 856 (1): 23. arXiv: 1801.09051. Bibcode: 2018ApJ...856...23G. doi: 10.3847/1538-4357/aaae09. ISSN  0004-637X. S2CID  119185386.
  3. ^ Mamajek, Eric E. (January 2016). "A Pre-Gaia Census of Nearby Stellar Groups". IAUS. 314: 21–26. arXiv: 1507.06697. Bibcode: 2016IAUS..314...21M. doi: 10.1017/S1743921315006250. ISSN  1743-9221. S2CID  118943644.
  4. ^ Eisenbeiss, T.; Ammler-von Eiff, M.; Roell, T.; Mugrauer, M.; Adam, Ch; Neuhäuser, R.; Schmidt, T. O. B.; Bedalov, A. (August 2013). "The Hercules-Lyra association revisited. New age estimation and multiplicity study". Astronomy & Astrophysics. 556: A53. arXiv: 1312.4045. Bibcode: 2013A&A...556A..53E. doi: 10.1051/0004-6361/201118362. ISSN  0004-6361. S2CID  119275785.
  5. ^ a b c Torres, C. a. O.; Quast, G. R.; Melo, C. H. F.; Sterzik, M. F. (December 2008). "Young Nearby Loose Associations". Hsf2. 5: 757. Bibcode: 2008hsf2.book..757T.
  6. ^ Torres, C. A. O.; Quast, G. R.; Melo, C. H. F.; Sterzik, M. F. (2008-12-01). Young Nearby Loose Associations. Vol. 5. Bibcode: 2008hsf2.book..757T.
  7. ^ Zuckerman, B. (2019-01-01). "The Nearby, Young, Argus Association: Membership, Age, and Dusty Debris Disks". The Astrophysical Journal. 870 (1): 27. arXiv: 1811.01508. Bibcode: 2019ApJ...870...27Z. doi: 10.3847/1538-4357/aaee66. ISSN  0004-637X.
  8. ^ Silaj, J.; Landstreet, J. D. (June 2014). "Accurate age determinations of several nearby open clusters containing magnetic Ap stars". Astronomy & Astrophysics. 566: A132. arXiv: 1407.4531. Bibcode: 2014A&A...566A.132S. doi: 10.1051/0004-6361/201321468. ISSN  0004-6361. S2CID  53370832.
  9. ^ Gagné, Jonathan; Faherty, Jacqueline K.; Mamajek, Eric E. (October 2018). "Volans-Carina: A New 90 Myr Old Stellar Association at 85 pc". Astrophysical Journal. 865 (2): 136. arXiv: 1808.04420. Bibcode: 2018ApJ...865..136G. doi: 10.3847/1538-4357/aadaed. ISSN  0004-637X. S2CID  119402144.
  10. ^ a b c d Oh, Semyeong; Price-Whelan, Adrian M.; Hogg, David W.; Morton, Timothy D.; Spergel, David N. (June 2017). "Comoving Stars in Gaia DR1: An Abundance of Very Wide Separation Comoving Pairs". The Astronomical Journal. 153 (6): 257. arXiv: 1612.02440. Bibcode: 2017AJ....153..257O. doi: 10.3847/1538-3881/aa6ffd. ISSN  0004-6256. S2CID  119351439.
  11. ^ "eta cha cluster". sim-basic. Retrieved 2020-06-12.
  12. ^ a b Faherty, Jacqueline K.; Bochanski, John J.; Gagné, Jonathan; Nelson, Olivia; Coker, Kristina; Smithka, Iliya; Desir, Deion; Vasquez, Chelsea (August 2018). "New and Known Moving Groups and Clusters Identified in a Gaia Comoving Catalog". Astrophysical Journal. 863 (1): 91. arXiv: 1804.09058. Bibcode: 2018ApJ...863...91F. doi: 10.3847/1538-4357/aac76e. ISSN  0004-637X. S2CID  55679388.
  13. ^ Tang, Shih-Yun; Pang, Xiaoying; Yuan, Zhen; Chen, W. P.; Hong, Jongsuk; Goldman, Bertrand; Just, Andreas; Shukirgaliyev, Bekdaulet; Lin, Chien-Cheng (May 2019). "Discovery of Tidal Tails in Disrupting Open Clusters: Coma Berenices and a Neighbor Stellar Group". Astrophysical Journal. 877 (1): 12. arXiv: 1902.01404. Bibcode: 2019ApJ...877...12T. doi: 10.3847/1538-4357/ab13b0. ISSN  0004-637X. S2CID  85517325.
  14. ^ Luhman, K. L. (December 2018). "The Stellar Membership of the Taurus Star-forming Region". The Astronomical Journal. 156 (6): 271. arXiv: 1811.01359. Bibcode: 2018AJ....156..271L. doi: 10.3847/1538-3881/aae831. ISSN  0004-6256. S2CID  119471553.
  15. ^ Alves, João; Zucker, Catherine; Goodman, Alyssa A.; Speagle, Joshua S.; Meingast, Stefan; Robitaille, Thomas; Finkbeiner, Douglas P.; Schlafly, Edward F.; Green, Gregory M. (January 2020). "A Galactic-scale gas wave in the Solar Neighborhood". Nature. 578 (7794): 237–239. arXiv: 2001.08748. Bibcode: 2020Natur.578..237A. doi: 10.1038/s41586-019-1874-z. PMID  31910431. S2CID  210086520.
  16. ^ "Cl Platais 8". sim-id. Retrieved 2020-06-12.
  17. ^ Gagné, Jonathan; David, Trevor J.; Mamajek, Eric E.; Mann, Andrew W.; Faherty, Jacqueline K.; Bédard, Antoine (2020-11-01). "The μ Tau Association: A 60 Myr Old Coeval Group at 150 pc from the Sun". The Astrophysical Journal. 903 (2): 96. arXiv: 2008.06139. Bibcode: 2020ApJ...903...96G. doi: 10.3847/1538-4357/abb77e. ISSN  0004-637X.
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